What’s Vulnerable › Vulnerabilities

CVE-2013-3903

• Severity: medium (CVSS 4.7 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-12-11 · updated 2026-06-16
• Weakness: CWE-20

Description

Array index error in win32k.sys in the kernel-mode drivers in Microsoft Windows 8, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to cause a denial of service (reboot) via a crafted TrueType font (TTF) file, aka "TrueType Font Parsing Vulnerability."

Affected products

• Microsoft Windows 8: all versions
• Microsoft Windows Rt: all versions
• Microsoft Windows RT 8.1: all versions
• Microsoft Windows Server 2012: r2

References

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-101
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-101

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